Supplementary Appendix Should Diabetes Mellitus be a Compelling Indication for Renin Angiotensin System Blockers? Insights from a Systematic Review and Meta-Analysis of Randomized Trials Sripal Bangalore, MD, MHA, Robert Fakheri, MD, Bora Toklu, MD, Franz H. Messerli, MD This appendix has been provided by the authors to give readers additional information about their work. 1
Contents Figure S1. Study selection... 3 Figure S2. Funnel Plot: RAS blockers versus other antihypertensive agents for the outcome of death... 4 Figure S3. Funnel Plot: RAS blockers versus other antihypertensive agents for the outcome of cardiovascular death... 5 Figure S4. Funnel Plot: RAS blockers versus other antihypertensive agents for the outcome of myocardial infarction... 6 Figure S5. Funnel Plot: RAS blockers versus other antihypertensive agents for the outcome of angina pectoris... 7 Figure S6. Funnel Plot: RAS blockers versus other antihypertensive agents for the outcome of stroke... 8 Figure S7. Funnel Plot: RAS blockers versus other antihypertensive agents for the outcome of heart failure... 9 Figure S8. Funnel Plot: RAS blockers versus other antihypertensive agents for the outcome of death... 10 Figure S9. Funnel Plot: RAS blockers versus other antihypertensive agents for the outcome of end stage renal disease... 11 Figure S10. Funnel Plot: RAS blockers versus other antihypertensive agents for the outcome of drug withdrawal due to adverse effects... 12 Table S1. Details of Search Terms... 13 Table S2. Baseline Characteristics of the Clinical Trials included in the Meta-analysis... 14 Table S3. RAS blockers vs. other antihypertensive agents: Sensitivity analysis excluding impaired fasting glucose cohorts... 16 References... 17 2
Figure S1. Study selection Records identified through database search using terms Angiotensin- Converting enzyme inhibitor, angiotensin receptor antagonist, and limited to RCT, Humans (n=11120) Duplicate studies (n=2010) Records excluded on the basis of title and/or abstract (n=8545) Full-text articles assessed for eligibility (n=565) Sample size <100 or follow-up <1-year (n=232) Not reporting relevant findings (n=212) 121 articles retrieved for detailed evaluation; bibliographies checked for additional studies (n=0) Children cohort (n=3) Cancer cohort (n=2) Transplant cohort (n=3) Retracted studies (n=4) Concomitant ACEi and ARB use (n=3) Non-diabetic cohorts (n=87) Studies included in the final metaanalysis (n=19) 3
Figure S2. Funnel Plot: RAS blockers versus other antihypertensive agents for the outcome of death 4
Figure S3. Funnel Plot: RAS blockers versus other antihypertensive agents for the outcome of cardiovascular death 5
Figure S4. Funnel Plot: RAS blockers versus other antihypertensive agents for the outcome of myocardial infarction 6
Figure S5. Funnel Plot: RAS blockers versus other antihypertensive agents for the outcome of angina pectoris 7
Figure S6. Funnel Plot: RAS blockers versus other antihypertensive agents for the outcome of stroke 8
Figure S7. Funnel Plot: RAS blockers versus other antihypertensive agents for the outcome of heart failure 9
Figure S8. Funnel Plot: RAS blockers versus other antihypertensive agents for the outcome of death 10
Figure S9. Funnel Plot: RAS blockers versus other antihypertensive agents for the outcome of end stage renal disease 11
Figure S10. Funnel Plot: RAS blockers versus other antihypertensive agents for the outcome of drug withdrawal due to adverse effects 12
Table S1. Details of Search Terms Search terms used Candesartan or Irbesartan or Losartan or Telmisartan or Valsartan or Olmesartan or Eprosartan or Azilsartan or Fimasartan or Benazepril or Captopril or Enalapril or Cilazapril or Delapril or Fosinopril or Imidapril or Lisinopril or Moexipril or Perindopril or Quinapril or Ramipril or Spirapril or Temocapril or Trandolapril or Zofenopril Angiotensin-Converting Enzyme Inhibitor; Angiotensin-Converting Enzyme Inhibitors; angiotensin receptor antagonist; angiotensin receptor antagonists; angiotensin receptor blocker; angiotensin receptor blockers 13
Table S2. Baseline Characteristics of the Clinical Trials included in the Meta-analysis Trial Treatment Comparison Nephropathy Primary Endpoint (treatment vs comparison) ABCD Enalapril Nisoldipine 18% vs 19% Change in 24h CrCl (Hypertensive) 1,2 ABCD Enalapril Nisoldipine 34% vs 34% Change in 24h CrCl (Normotensive) 3 ALLHAT 4-6 Lisinopril Amlodipine NR Combined fatal coronary heart disease or non-fatal MI BENEDICT 7 Trandalopril Verapamil None Persistent microalbuminuria CAMELOT 8 (DM Enalapril Amlodipine NR CV events subgroup) CASE-J 9-11 (DM Candesartan Amlodipine 23% vs 22% CV events subgroup) FACET 12 Fosinopril Amlodipine None Lipid profile and glucose metabolism Fogari et al 13 Fosinopril Amlodipine 100% vs Urinary albumin excretion 100% IDNT 14-16 Irbesartan Amlodipine 100% vs 100% JMIC-B 17,18 (DM subgroup) Enalapril, Imidapril, Lisinopril 14 Composite endpoint of a doubling of serum Cr, development of ESRD, or death Nifedipine NR Cardiac events J-MIND 19 Enalapril Nifedipine 36% vs 38% Macroalbuminuria MITEC 20 Candesartan Amlodipine NR Common carotid artery intimamedia thickness MOSES 21,22 (DM subgroup) Eprosartan Nitrendipine 6% vs 8% Composite of total mortality and all cardiovascular events NAGOYA HEART 23 Valsartan Amlodipine NR Composite of MI, stroke, coronary revascularization, admission for CHF, or sudden cardiac death STOP-Hypertension- 2 24 (DM subgroup) Enalapril, Lisinopril Felodipine, Isradipine NR Fatal CV disease ALLHAT 4-6 Lisinopril Chlorthalidone NR Combined fatal coronary heart disease or non-fatal MI ANBP2 25,26 (DM Enalapril HCTZ 13% Any CV event or death subgroup) NESTOR 27 Enalapril Indapamide 100% vs Microalbuminuria 100% UKPDS 39 28 Captopril Atenolol 16% vs 20% (1) first clinical endpoint related to DM; (2) death related to DM; and (3) death from all causes (three separate endpoints) LIFE 29-32 (DM subgroup) Losartan Atenolol 11% vs 12% Composite endpoint of CV death, MI and stroke ABCD=Appropriate Blood Pressure Control in Diabetes; ALLHAT=Antihypertensive and Lipid-Lowering Treatment to Prevent Heart Attack Trial; ANBP2= Second Australian National Blood Pressure Study; BENEDICT=Bergamo Nephrologic Diabetes Complications Trial; β-blocker=beta-blocker; CAD=Coronary artery disease;
CAMELOT=Comparison of Amlodipine vs Enalapril to Limit Occurrences of Thrombosis; CASE-J= Candesartan Antihypertensive Survival Evaluation in Japan; CCB=Calcium channel blocker; CVA=Cerebrovascular accident; DM=Diabetes mellitus; FACET= Fosinopril Versus Amlodipine Cardiovascular Events Randomized Trial; HTN=Hypertension; IDNT=Irbesartan Type II Diabetic Nephropathy Trial; IFG=Impaired fasting glucose; JMIC-B=Japan Multicenter Investigation for Cardiovascular Diseases-B; J-MIND=Japan Multicenter Investigation of Antihypertensive Treatment for Nephropathy in Diabetics; LIFE=Losartan Intervention For Endpoint reduction; LVH=Left ventricular hypertrophy; MITEC=Media Intima Thickness Evaluation with Candesartan cilexetil; MOSES=Morbidity and Mortality After Stroke, Eprosartan Compared With Nitrendipine for Secondary Prevention; NAGOYA HEART=Comparison between valsartan and amlodipine regarding morbidity and mortality in patients with hypertension and glucose intolerance; NESTOR=Natrilix SR versus Enalapril Study in Type 2 diabetic hypertensives with microalbuminuria; NR=not reported; RAS-inh=Renin-Angiotensin System inhibitor; STOP-Hypertension=Swedish Trial in Old Patients with Hypertension; UKPDS=UK Prospective Diabetes Study Group. *Represents risk of bias based on: sequence generation of allocation; allocation concealment and blinding. + represents low bias risk, - high bias risk, and ± unclear bias risk. 15
Table S3. RAS blockers vs. other antihypertensive agents: Sensitivity analysis excluding impaired fasting glucose cohorts Outcome RR (95% CI) (Random-effects) RR (95% CI) (Fixed-effect) Death 0.99 (0.93-1.06) 0.99 (0.93-1.06) Cardiovascular death 1.02 (0.83-1.24) 1.02 (0.83-1.23) Myocardial Infarction 0.87 (0.64-1.18) 0.93 (0.76-1.12) Angina Pectoris 0.80 (0.58-1.11) 0.81 (0.59-1.10) Stroke 1.04 (0.91-1.19) 1.06 (0.96-1.17) Heart Failure 0.89 (0.75-1.06) 0.91 (0.84-1.00) Revascularization 0.97 (0.77-1.22) 0.97 (0.77-1.22) End Stage Renal Disease 0.92 (0.75-1.13) 0.93 (0.80-1.08) Withdrawal due to adverse events 0.80 (0.61-1.05) 0.77 (0.65-0.92) 16
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